Tubular gauge



D@ 31, 1929 E. H. ALDEBORGH 1,741,268

TUBULAR GAUGE Filed Jan. 30, 1929 wuentoz rKJ-L. Aldeborqh.

- www Patented Dec. 31, 1929 UNTED STATES PATENT OFFICE ERIK H.ALDEBORGH, OF POUGHKEEPSIE, NEW` YORK, ASSIGNOR '10 STANDARD GAGECOMPANY, INC., OF POUGHKEEPSIE, NEW YORK, A CORPORATION OF NEW YORKTUBULAR GAUGE Serial No. 336,104.

This invention relates to a tubular 'aufre FiO'ures 1 and 2 for theO'auoino' member a t: 7 b 7 b D 23 that is a measuring or checkinginstrument for internal diameters or threads, and known as a plug orthread gauge, but ditliering from the usual construction in that thegauging member is made from a piece of tubing,

with but very little machining other than sizing the outer diameter bygrinding.

The present invention discloses a gauge 10 which is also disclosed in anapplication which was iiled on April 4, 1928, under Serial The object ofthe invention is to construct a gauge of this class for use with largediameters that shall be very light in weight in proportion to its size.

Another object of the invention is to construct a gauge in which thegauging memloer is formed :from a piece ot straight commercial tubing.

A still further object is to construct a gauge from tubing, and providemeans for mounting said tubing upon a handle 1n an interchangeable andreversible manner.

Also such a tubular gauging member may be mounted on one or both ends ofany suitable handle, in such a manner that one may be designed for, a Goand the other for a No Go measurement.

Vith these and other objects in view, my invention consists in certaincombination and construction ot parts as will hereinafter be fullydescribed and claimed and fully illusor trated in the accompanyingdrawings which M form a part hereof and in which like gures ot referencerefer to corresponding parts in all of the views, but it is understoodthat slight changes may be made without departing from the spirit of theinvention.

In the drawings:

Figure 1, is a partial sectional view of my invention. ,f,

Figure 2, shows an end view of this form of gauge.

Figure 8, shows a partial sectional view of a modified form otconstruction.

Figure 1, shows an end view of the same. Referring to the drawings andparticularly to the preferred construction shown in single piece otcommercial steel tubing v10 is provided o the required length andoutside diameter, and with a heavy wall, and the ends of said member 10are shouldered slightly as at 11. y

For mounting and supporting said gauging member, there is provided ahandle 12, which is formed with external threads 13 and the internalthreads 14; while mounted on said handle 12 is a knur'led ring 15'threaded thereon to form a shoulder for a mounting ring 16, which isprovided with a bore or larger diameter than the diameter of saidhandle, and an outer diameter adapting it to lit within theshoulderedend 11 of the member 10.

Mounted in the other end of the member 10, is a bushing member 17, whichis formed with a flanged head 18 adapted to engage the flanged end 11 ofthe member 10, while the body of said member 17 is threaded to receivethe threaded end of the handle, upon which it is mounted.

The external'diameter of the body of said member 17 being less than theinternal diameter of the gauging member 10, and the length alsobeingless than the distance between the inner faces of the ring 16 andthe head 18, so that as the bushing member 17 is threaded and drawn upon the threaded end of the handle 12, the gauging member 10 will begripped therebetween and held in a rigid manner.

For preventing accidental loosening of the members, the head 18 isrecessed as at 19 and provided with a hole through which is passed ascrew 20 which is threaded into the threaded end 14 of the handle 12.

In the modified form shown in Figures 3 and 4L, the gauging member 10 isnot shouldered, but the mounting ring 21 is formed with a shoulder 22,and a second mounting ring 23 is provided which is also shouldered as at24, and provided with a recessed end 25 having a hole for a screw 26which is threaded into the end of the handle 26; said handle beingprovided with the ring 15 which is threaded thereon in an adjustablemanner, so that the mounting rings 21 and 23 may grip the ends of thegauging member 10 and hold the same.

It Will thus be seen that the gauging members are both removable andreversible With respect to the handle.

Havingith'us described myinVentiOn, what I claim as neW and desire tosecure by Letters Patent, is:

l. A gauge of the class described, comprisingncombination with' ayhandle having a threaded end, of atubular gauging v-member formed With acircumferential-lGVCGSS in each end thereof, means for securing saidgauging member to said handle in'botha detachable and reversible mannercomprising a bushing-threadedA upon Said handle, a-lange formedion oneendofsaid bushingland adapted toienfgage the shoulder formed-bythe'recess of -athe gauging member, at fendgoi1 :said gauging member,Ial mounting ring mounted on said handle and adapted to engage lfthesimilar Ashoulder rat the -other end of said gauging member, a ,lockingringthreadedon Said handle in .contact with rsaid mounting ring, andalocking screwthreaded into'the end of said handle and engaging isaidbushing.

2. A tubular gaugeofthe classdescribed, comprising 1in combination Witha handle provided iwith external Vthreads ,and an in- .ternal threaded-bore at one end, l'and `a straight tubular gauging member,iof z-a .pairof. centering and mounting l members adapted to be engaged fbyftheendsofsaid tubular gaugingmember, and :means for: securing the same to saidhandle ycomprising :a screw .en-

lgagingone voff said mounting members and .threaded into-'the l internalthreaded ibore of said handle, and a ring formin-gfa shoulder for theother .mountmg member and .secured yupon theeXternal threaded portion ofsaid handle.

In testimony xwhereof I afiXmy signature.

ERISK zll. ALDEBQRGH.

